Shoe-stitching machine.



C. C. HANSEN.

SHOE STITCHING MACHINE. APPLICATION men AUG-27,1914.

1,204,867 Patented Nov. 14, 1916.

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WWI IM C. C. HANSEN. SHOE STITCHING MACHINE.

APPLICATION FILED AUG.27. 1914.

1,204,867. Patented Nov. 14, 1916.

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SHOE STITCHING MACHINE.

APPLICATION FILED AUG-27. 1914.

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APPLICATION FILED AUG-27, 1914.

1,204,867. I Patented Nov. 14,1916.

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CARL CHRISTIAN HANSEN, F FREDERIKSBERG, DENMARK.

SHOE-STITCHING MACHINE.

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Application filed August 27, 1914.

To all whom it may concern Be it known that l, CARL GLUUS'ITAN IIANSEN, oi No. 8 Aeroevej, l rederil zsberg, near Copenhagen, in the Kingdom ofDenmark, have invented certain new and use ful Improvements in Shoe-Stitching Ma chines; and I do hereby declare the following to be a tull,.clea1.'. and exact description of the invention, such as will enable others skilled in the artto which it appertains to make and use the same. reference being had to the accompanying drawings, and to letters or figures oi reference marked thereon, which form a part of this specification.

Shoe stitching machines are already known in which there are used a cuiwed.

hook-shaped needle and a likewise curved awl, which turns around the same axle as the needle, and in which the shuttle which catches the thread is disposed above the table. In shoe stitching machines of this kind, the sole is held fast between the table below and a presser-foot above, the latter following the grooving in the sole.- These holding devices must be adjusted vertically in relation to each other .iiiaccordance with the thickness of the work. Now .ince this adjustment takes place vertically, and since both needle and awl turn around the same axle, it frequently happens that the needle strikes against one of the holding-pieces and breaks.

It has been especially difficult to obtain a sufiiciently secure guiding of the rest, so that as the wear takes place, it will often happen that the needle or the awl is broken.

In known machines of this kind the rest consists of a cylindrical portion or bushing through which the axle, common to the needle and awl, is passed and a laterally pro jccting portion in which the hole is formed for the passage of the needle and the awl. This causes an oblique influence and consequently an uneven wear and pressure on the rest. According to the present invention, this drawback is prevented by using a rest which has two journals on the axle, between which journals a hole is formed for the passage of the needle and awl.

A form of construction of this invention is shown on the drawing, in which liigurev 1 is a top view of the machine, Fig. 2 is a front view of the same, Fig. 3 shows the parts which cause the movement of the needle, Fig. 4 shows the members that cause the movement of the awl, Fig. 5 is a Specification of Letters Patent.

Patented Nov. 1st, 1916.

Serial No. 858,861.

front view of the shuttle, Fig. 6 is a section of the sluittle, Fig. 'iis the mechanism by means of which the thread is pulled, and F 8 is the carrying and releasing mechanism.

T he main axle 2 of the machine has its bearings in the machine-frame 1, Figs. 1 and 2. This axle is turned in a known man ner by means of a "fly-wheel, or the like, not shown on the drawing, and carries an eccentric cam 3, Figs. 1 and 2, upon which rests a bar at pivot-ed. at one end on a pin 5, and carrying on its other end a rack l which is reciprocated up and down as the axle 2 rotates. The rack i meshes with a pinion 6, which moves a shuttle-carrier 7, which is disposed in the shuttle-bearing 8 and carries the shuttle 9 with shuttle-point 10 (see Figs. and (3).. The main axle 2 also carries a cam 11, which has lateral undulating edges 12, between which there moves a roller 13, disposed on the lower side of a rod 14, one end of whichis connected to an axle 15, hav ing its hearings in the frame, in such a manner that it can be moved laterally and reciprocated longitudinally (see F ig. 1).

T he lateral movement of the rod is caused by the undulating moi' ement of the roller 13 between the edges 12 of the cam 11, and the reciprocating movement is caused by a roller 16' (see Fig. 7), which is disposed on the side of the cam 11, and which presses against a peculiarly-shaped rod 17 pivoted on a pin 18 and provided with a semi-cylindrical projection 19, which acts on the one end of therod ll. At its opposite end the rod ll.

carries a loop-eye 20, which thus, in the manner above described, is given both a lateral and a reciprocating movement. On the pin 18 is also pivotally disposed a takeup rod 21 with a knee 22 and, in its free end. an eye 23, through which-the thread is carried to the loop-eye 20.

The axle 2 further carries a disk 25, Fig. 3 having a roller 26 on its side adapted to actuate the take up rod 21 and a curved projection 27 on its edge. In the other side of the disk is disposed a curved groove 28, in which can move a roller 29, attached to a cog-segment 3O pivoted on the axle 15. The cog-segment 30 meshes with another cogsegment 31 firmly fixed on the axle 32 in common for both needle and awl, and carrying the needle 33. On the axle 32 is disposed the needle-protector 34, which is actuated by a spring 35, disposed on the cogsegment 31, in such a manner that it only follows the movement of; the needle a short distance downward. The curved projection 27 on the disk acts against the end of a rod 36 (Fig. 1) disposed between the needle 33 and the shuttle 9, which rod is surrounded by a spiral spring pressing it against the 1 disk 25. Thus the rod 36 is'given a reciprocatlng movement. The other end of the rod 36 is formed like a hook-shaped'point 37. ex

tending forward in front of the needle 33.

Furthermore the axle 2 carries a disk 38 (Fig. 4) which has a groove 89 in which can move a roller 4H) disposed on a cog-segment e1 pivoted on the axle The cogsegment 41 meshes with the cog-segment e2,

' pivoted on the axle and carries theawl Finally the main-axle) carries a disk 44 Figs. 1, 2 and 8), w 'ch has lateral, un-

dulating edges 45, between which moves a roller 1:6, disposed on the lower side of a carriererod 17 capable of turning in a horizontal plane on a pivot post 18 in such a manner that the fork-shaped. free end 49 of the rod 17, grasps around the cog-segment -2, and gives the latter a lateral movement .(see Fig. 1). The disk 1% carries on its side a roller 50 which, as the disk turns, moves a suitably disposed pawl 51 in such a manner that it will engage teeth on a toothed sector 52, pivoted on a pin 53wh1ch has its 7 bearin in the machine-frame 1 and actuate arm of said lever forming a rest 57.

the sector against the pull of a spring 54:.

The sector 52 is provided with a pin 55 overcomes'the before-mentioned oblique influence so that the rest is'easily moved and 'is more durable. presser-foot 58 is stationarily disposed on Above the rest 57 a the machine-frame 1.

The machine works in the following manner: The sole is placed-between the presserfoot 58 and the rest 57, after which the machine is started. The awl i3 is then driven u a-throu h the sole b the co -segments 4&1 g Y e a a 1-2 through the action of the cam 39 on roller a0.fThe11=tl1e rest 57 is lowered by the'ac tion of the roller 50 on; the pawl 51, the toothed sector 52 being rocked so as to raise thread with it through the sole.

ment against movement so that the rest 57 cannot be depressed by the withdrawal of the awl from the sole. At this moment the loop-eye 20 carries the thread around the needle 33, which then recedes and takes the Now the hook 37 carries the fast end of the thread forward, so that the point 10 of the shuttle can reliably grasp it and 3215s it around the shuttle 9, so that it will take with it the underthread after which the take-up rod 21, whose knee 22 is actuated by the roller 26, ties the threads in. the leather. The thread from spool, not shown, passes through a tension device of well known form which consists of two disks 59 and 60 that are pressed together by means of a spring 61,

tion with a curved needle and a curved awl pivoted on common axle, and mechanism for ac vancing and retracting said needle and awl; of a fixed press er foot coiiperating with the'awl, a sole rest comprising a two armed lever fulcrui'ned on the axle one of said arms beingprovided with a longitudinal slot and projecting'beneath the presser foot, a sector pivotally mounted on the machine frame, 'a rack on said sector, a pin on one end of the sector engaging said slot in the other arm of the lever, a pawl arranged to depress the other end of the sector and to engage said rack to lock the sector in position, and means to actuate the pawl.

In testimony that I claim the foregoing as my invention, I have signed my name in presence of two subscribing witnesses.

CARL CHRISTIAN HANSEN. Witnesses P. I-IOFMAN-BANG,

ERNEST BOUTARD.

Copies 6f this patent may be obtained'for five cents each, by addressing the fcominissioner of Patents,

' Washington, D. 0. 

